linux-kernel - Re: [PATCH] KVM: SVM: let alternatives handle the cases when rsb filling is required

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Message-ID: <20240621125159.GDZnV3b-eqbkGTB7YD@fat_crate.local>
Date: Fri, 21 Jun 2024 14:51:59 +0200
From: Borislav Petkov <bp@...en8.de>
To: Amit Shah <amit@...nel.org>
Cc: x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	amit.shah@....com, seanjc@...gle.com, pbonzini@...hat.com,
	tglx@...utronix.de, mingo@...hat.com, dave.hansen@...ux.intel.com,
	hpa@...or.com, kim.phillips@....com, david.kaplan@....com
Subject: Re: [PATCH] KVM: SVM: let alternatives handle the cases when rsb
 filling is required

On Fri, Jun 21, 2024 at 02:07:43PM +0200, Amit Shah wrote:
> From: Amit Shah <amit.shah@....com>
> 
> This patch removes superfluous RSB filling after a VMEXIT when the CPU

s/This patch removes/Remove/

> already has flushed the RSB after a VMEXIT.

... because AutoIBRS flushes the RSB on VMEXIT."

I'd like to be stated clearly that AutoIBRS does that.

Otherwise, looks ok to me.

Thx.

-- 
Regards/Gruss,
    Boris.

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